core/hid: Add home and screenshot button support

src/core/hid/emulated_controller.cpp

@@ -596,7 +596,10 @@ void EmulatedController::SetButton(const Common::Input::CallbackStatus& callback
             controller.npad_button_state.right_sr.Assign(current_status.value);
             break;
         case Settings::NativeButton::Home:
+            controller.home_button_state.home.Assign(current_status.value);
+            break;
         case Settings::NativeButton::Screenshot:
+            controller.capture_button_state.capture.Assign(current_status.value);
             break;
         }
     }
@@ -1077,6 +1080,20 @@ BatteryValues EmulatedController::GetBatteryValues() const {
     return controller.battery_values;
 }
 
+HomeButtonState EmulatedController::GetHomeButtons() const {
+    if (is_configuring) {
+        return {};
+    }
+    return controller.home_button_state;
+}
+
+CaptureButtonState EmulatedController::GetCaptureButtons() const {
+    if (is_configuring) {
+        return {};
+    }
+    return controller.capture_button_state;
+}
+
 NpadButtonState EmulatedController::GetNpadButtons() const {
     if (is_configuring) {
         return {};

src/core/hid/emulated_controller.h

@@ -101,6 +101,8 @@ struct ControllerStatus {
     VibrationValues vibration_values{};
 
     // Data for HID serices
+    HomeButtonState home_button_state{};
+    CaptureButtonState capture_button_state{};
     NpadButtonState npad_button_state{};
     DebugPadButton debug_pad_button_state{};
     AnalogSticks analog_stick_state{};
@@ -261,7 +263,13 @@ public:
     /// Returns the latest battery status from the controller with parameters
     BatteryValues GetBatteryValues() const;
 
-    /// Returns the latest status of button input for the npad service
+    /// Returns the latest status of button input for the hid::HomeButton service
+    HomeButtonState GetHomeButtons() const;
+
+    /// Returns the latest status of button input for the hid::CaptureButton service
+    CaptureButtonState GetCaptureButtons() const;
+
+    /// Returns the latest status of button input for the hid::Npad service
     NpadButtonState GetNpadButtons() const;
 
     /// Returns the latest status of button input for the debug pad service

src/core/hid/hid_types.h

@@ -378,6 +378,26 @@ struct LedPattern {
     };
 };
 
+struct HomeButtonState {
+    union {
+        u64 raw{};
+
+        // Buttons
+        BitField<0, 1, u64> home;
+    };
+};
+static_assert(sizeof(HomeButtonState) == 0x8, "HomeButtonState has incorrect size.");
+
+struct CaptureButtonState {
+    union {
+        u64 raw{};
+
+        // Buttons
+        BitField<0, 1, u64> capture;
+    };
+};
+static_assert(sizeof(CaptureButtonState) == 0x8, "CaptureButtonState has incorrect size.");
+
 struct NpadButtonState {
     union {
         NpadButton raw{};